I think this kind of single platform with passing loop design is common in New Zealand. Not sure, but someone on here will know for sure!
Having travelled extensively in New Zealand by rail I cannot recall any station of this design.
Have to disagree most stations in New Zealand are of this design. Christchurch, Dunedin, National Park and several others on the Main Trunk spring to mind. If I could work out how to attach pictures I have lots of photos of single track NZ stations.
I first came across the Penryn style station in East Germany on the Rostock to Bad Dobran line over 10 years ago. I even have some video from the front of a
DMU▸ approaching the train already stopped in other end of the platform, stropping and then pulling away and taking the facing point for the loop and passing the other train still in the platform. Penryn is different because the trains pass before reaching the platform and don't approach nose to nose.
DB» must have more faith in it's
AWS▸ (Indusi)
Thinking about it what about Cambridge style solution for Melksham? Long loop, long platform and a scissor crossover half way along? With suitable signalling and length of loop and platform you could have trains in the same direction passing with a train coming the other way.
Edited for typos: